Basic mastery of light allows me to use lasers, blasts, rasengans, etc in the Light element. No real special abilities have been created with this yet.
Another form of light techniques I have is light alteration. This allows me to create illusions such as clones and other things to distract enemies. I can also render myself completely invisible when the time comes, simply by bending the light around me.
Perhaps my most important ability, my Kekkei Genkai allows me to alter the hue of the sun and in turn the atmosphere around it, creating a battlefield with the element of my choice. Once an element is "projected" over a battlefield, my own appearence changes to fit it and I can then use chakra abilities of that element, at the same mastery of what I can do with Light. Again though, no special techs have been created.